PWA App switching

I am building a PWA with onsen ui. This is working great.
But, when i have the app open on my mobile and switch to a other app, and go back again to my PWA, it always goes back to my main page. This can be frustrating. I navigate to some specific info in my PWA, switch to my mail to check something, then switch back again, and i get thrown back to the main page and have to navigate back to where i was.

Is there a way to stay on the same page when switching between Apps?
Do i need to store the navigator stack myself and on reopening check the saved stack and use it to navigate to the page i was? or is there a more simple way to do this?